Question

why upper skin of a leaf is transparent​

Answer 1

there have chlorophyl

Answer 2

$\huge\mathbb{Answer}$

This is a single layer of cells containing few or no chloroplasts. The cells are quite transparent and permit most of the light that strikes them to pass through to the underlying cells. The upper surface is covered with a waxy, waterproof cuticle, which serves to reduce water loss from the leaf.

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